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Sexual Dimorphism Crotalus Cerastes
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by JorgeRemigio on September 15, 2007
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Dear Friends,
I would like to know that if is there any sexual dimorphism obvious caracteristics that I can use to tell male from female (newborn Crotalus Cerastes Cercombus) without probbing?
Thank you so much
With my very best regards
Jorge Remígio
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RE: Sexual Dimorphism Crotalus Cerastes
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by Cro on September 15, 2007
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Jorge, determining the sex of new-born rattlesnakes is fairly easy just from observation if you have several of them to compare with each other.
The males will tend to have longer, thicker tails, which taper more continuously after the vent, while the females will have shorter, more quickly tapering tails after the vent.
You could also save the first shed skins of the snakes. There is likely a difference in scale counts between males and females, however, my copy of Klauber`s Rattlesnakes is packed away, and not accessable, so I an not able to tell you the scale count differences. I would guess however, that the females will have fewer belly scales after the vent than the males have.
Hope this helps.
Best Regards JohnZ
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RE: Sexual Dimorphism Crotalus Cerastes
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by Chris_Harper on September 15, 2007
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There's really not any obvious outward appearance of any rattlesnake species that will allow you to tell the difference between males and females. Even experts mislabel them occasionally. There is a technique that is used for sexing juveniles, but I wouldn't suggest you try it.
It's probably best to find someone who deals with venomous snakes to sex them for you, and also to demonstrate how this is done. Handling juveniles with your bare hands is a very good way to get bitten, because it is very different than handling adults.
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